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[SCTP] sctp_connectx() API support

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Implements sctp_connectx() as defined in the SCTP sockets API draft by
tunneling the request through a setsockopt().

Signed-off-by: Frank Filz <ffilzlnx@us.ibm.com>
Signed-off-by: Sridhar Samudrala <sri@us.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Frank Filz
2005-06-20 13:14:57 -07:00
committed by David S. Miller
parent 8b22c249e7
commit 3f7a87d2fa
16 changed files with 677 additions and 260 deletions
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105
net/sctp/sm_sideeffect.c
View File

@ -414,11 +414,13 @@ static void sctp_do_8_2_transport_strike(struct sctp_association *asoc,
*/
asoc->overall_error_count++;
if (transport->active &&
if (transport->state != SCTP_INACTIVE &&
(transport->error_count++ >= transport->max_retrans)) {
SCTP_DEBUG_PRINTK("transport_strike: transport "
"IP:%d.%d.%d.%d failed.\n",
NIPQUAD(transport->ipaddr.v4.sin_addr));
SCTP_DEBUG_PRINTK_IPADDR("transport_strike:association %p",
" transport IP: port:%d failed.\n",
asoc,
(&transport->ipaddr),
transport->ipaddr.v4.sin_port);
sctp_assoc_control_transport(asoc, transport,
SCTP_TRANSPORT_DOWN,
SCTP_FAILED_THRESHOLD);
@ -593,7 +595,7 @@ static void sctp_cmd_transport_on(sctp_cmd_seq_t *cmds,
/* Mark the destination transport address as active if it is not so
* marked.
*/
if (!t->active)
if (t->state == SCTP_INACTIVE)
sctp_assoc_control_transport(asoc, t, SCTP_TRANSPORT_UP,
SCTP_HEARTBEAT_SUCCESS);
@ -665,8 +667,11 @@ static void sctp_cmd_new_state(sctp_cmd_seq_t *cmds,
asoc->state = state;
SCTP_DEBUG_PRINTK("sctp_cmd_new_state: asoc %p[%s]\n",
asoc, sctp_state_tbl[state]);
if (sctp_style(sk, TCP)) {
/* Change the sk->sk_state of a TCP-style socket that has
/* Change the sk->sk_state of a TCP-style socket that has
* sucessfully completed a connect() call.
*/
if (sctp_state(asoc, ESTABLISHED) && sctp_sstate(sk, CLOSED))
@ -678,6 +683,16 @@ static void sctp_cmd_new_state(sctp_cmd_seq_t *cmds,
sk->sk_shutdown |= RCV_SHUTDOWN;
}
if (sctp_state(asoc, COOKIE_WAIT)) {
/* Reset init timeouts since they may have been
* increased due to timer expirations.
*/
asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT] =
asoc->ep->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT];
asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE] =
asoc->ep->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE];
}
if (sctp_state(asoc, ESTABLISHED) ||
sctp_state(asoc, CLOSED) ||
sctp_state(asoc, SHUTDOWN_RECEIVED)) {
@ -1120,10 +1135,10 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
* to be executed only during failed attempts of
* association establishment.
*/
if ((asoc->peer.retran_path !=
asoc->peer.primary_path) &&
(asoc->counters[SCTP_COUNTER_INIT_ERROR] > 0)) {
sctp_add_cmd_sf(commands,
if ((asoc->peer.retran_path !=
asoc->peer.primary_path) &&
(asoc->init_err_counter > 0)) {
sctp_add_cmd_sf(commands,
SCTP_CMD_FORCE_PRIM_RETRAN,
SCTP_NULL());
}
@ -1237,18 +1252,67 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
sctp_association_put(asoc);
break;
case SCTP_CMD_INIT_CHOOSE_TRANSPORT:
chunk = cmd->obj.ptr;
t = sctp_assoc_choose_init_transport(asoc);
asoc->init_last_sent_to = t;
chunk->transport = t;
t->init_sent_count++;
break;
case SCTP_CMD_INIT_RESTART:
/* Do the needed accounting and updates
* associated with restarting an initialization
* timer.
* timer. Only multiply the timeout by two if
* all transports have been tried at the current
* timeout.
*/
asoc->counters[SCTP_COUNTER_INIT_ERROR]++;
asoc->timeouts[cmd->obj.to] *= 2;
if (asoc->timeouts[cmd->obj.to] >
t = asoc->init_last_sent_to;
asoc->init_err_counter++;
if (t->init_sent_count > (asoc->init_cycle + 1)) {
asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT] *= 2;
if (asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT] >
asoc->max_init_timeo) {
asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT] =
asoc->max_init_timeo;
}
asoc->init_cycle++;
SCTP_DEBUG_PRINTK(
"T1 INIT Timeout adjustment"
" init_err_counter: %d"
" cycle: %d"
" timeout: %d\n",
asoc->init_err_counter,
asoc->init_cycle,
asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_INIT]);
}
sctp_add_cmd_sf(commands, SCTP_CMD_TIMER_RESTART,
SCTP_TO(SCTP_EVENT_TIMEOUT_T1_INIT));
break;
case SCTP_CMD_COOKIEECHO_RESTART:
/* Do the needed accounting and updates
* associated with restarting an initialization
* timer. Only multiply the timeout by two if
* all transports have been tried at the current
* timeout.
*/
asoc->init_err_counter++;
asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE] *= 2;
if (asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE] >
asoc->max_init_timeo) {
asoc->timeouts[cmd->obj.to] =
asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE] =
asoc->max_init_timeo;
}
SCTP_DEBUG_PRINTK(
"T1 COOKIE Timeout adjustment"
" init_err_counter: %d"
" timeout: %d\n",
asoc->init_err_counter,
asoc->timeouts[SCTP_EVENT_TIMEOUT_T1_COOKIE]);
/* If we've sent any data bundled with
* COOKIE-ECHO we need to resend.
@ -1261,7 +1325,7 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
sctp_add_cmd_sf(commands,
SCTP_CMD_TIMER_RESTART,
SCTP_TO(cmd->obj.to));
SCTP_TO(SCTP_EVENT_TIMEOUT_T1_COOKIE));
break;
case SCTP_CMD_INIT_FAILED:
@ -1273,12 +1337,13 @@ static int sctp_cmd_interpreter(sctp_event_t event_type,
subtype, chunk, cmd->obj.u32);
break;
case SCTP_CMD_COUNTER_INC:
asoc->counters[cmd->obj.counter]++;
case SCTP_CMD_INIT_COUNTER_INC:
asoc->init_err_counter++;
break;
case SCTP_CMD_COUNTER_RESET:
asoc->counters[cmd->obj.counter] = 0;
case SCTP_CMD_INIT_COUNTER_RESET:
asoc->init_err_counter = 0;
asoc->init_cycle = 0;
break;
case SCTP_CMD_REPORT_DUP: